I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
icones icons ikons ickiness igneous iguanas
cones icones scones bygones eikones agones doggones cons kanes goons gowns canoes agons keenness beguines canes cockneys acnes coons coins guineas akenes hackneys leukons gooeyness racoons kines reckons decanes gayness luckiness agonies geekiness lagunes meekness rockoons signees shakiness chicness cheekiness weakons wagons wackiness tigons quoins deacons daikons sogginess skenes recons quickness coneys hokiness pawkiness bogginess eikons kaons neocons pugginess gunnies cogons conus cakiness pigginess coyness hokeyness icons conies kookiness packness koines equines squinnies koans mugginess bacons likeness lacunes lagoons gawkiness bugginess cockiness cocaines kokanees goonies coignes gooneys cocoons beacons beignes deaconess bagginess jokiness quakiness recanes legginess ickiness macons conns fogginess logons leakiness bigness beckons vagueness pokiness eucaines ikons recoins racons rockiness sconce sickness skeanes skewness pickiness tackiness tycoons waggons weakness chaconnes chicanes shagginess yuckiness